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Dive into the research topics where Byoung Woo Ryu is active.

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Featured researches published by Byoung Woo Ryu.


international conference on performance engineering | 2011

AC/DC notebook adapter with 22mW no-load power consumption

Byoung Hee Lee; Byoung Woo Ryu; Seong Wook Choi; Gun-Woo Moon

An AC/DC notebook adapter with reduced no-load power consumption is proposed in this paper. During no-load condition, a lower limit of the output voltage is further lowered to reduce feedback circuit loss at the secondary side. Moreover, control-IC on/off scheme is employed to reduce power consumption of control-IC. As a result, the proposed AC/DC adapter of 65 W/17.5 V prototype can reduce the no-load power consumption under 30 mW. Operational principles and experimental results are presented to verify the feasibility of the proposed AC/DC adapter. Moreover, loss analysis of AC/DC adapter at no-load condition is also provided.


Archive | 2008

Adapter power supply

Byoung Woo Ryu; Gun Woo Moon; Seong Wook Choi; Jong Sun Kim; Dong Seong Oh


Archive | 2009

SWITCHING MODE POWER SUPPLY FOR REDUCING STANDBY POWER

Byoung Woo Ryu; Gun Woo Moon; Seong Wook Choi; Byoung Hee Lee; Dong Seong Oh


Archive | 2008

DC POWER SUPPLY FOR VARYING OUTPUT VOLTAGE ACCORDING TO LOAD CURRENT VARIATION

Byoung Woo Ryu; Chong Eun Kim; Dong Seong Oh; Jeong Man Han


Archive | 2013

Voltage control circuit with temperature compensation function

Ki Hong Kim; Min Jin Kim; Byoung Woo Ryu; Heung Gyoon Choi


Archive | 2015

CONTROL VOLTAGE ADJUSTING CIRCUIT, FEEDBACK SIGNAL GENERATING CIRCUIT, AND CONTROL CIRCUIT INCLUDING THE SAME

Ki Hong Kim; Byoung Woo Ryu; Jung Woo Choi


Archive | 2014

LIGHT DRIVING APPARATUS AND DRIVING METHOD THEREFOR

Byoung Woo Ryu; Kyu Tae Seo; Dae Hoon Choi; Ki Hong Kim; Min Jin Kim


Archive | 2013

SINGLE STAGE FORWARD-FLYBACK CONVERTER AND POWER SUPPLY APPARATUS FOR LIGHT EMITTING DIODE

Sang Kyoo Han; Byoung Woo Ryu; Heung Gyoon Choi; Keun Wook Lee; Hong Sun Park


Archive | 2015

DEVICE FOR DRIVING LIGHT EMITTING DIODE MODULE AND METHOD FOR DRIVING LIGHT EMITTING DIODE MODULE

Byoung Woo Ryu


Archive | 2013

LED DRIVING APPARATUS AND METHOD

Keun Wook Lee; Byoung Woo Ryu; Hong Sun Park; Heung Gyoon Choi

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Ki Hong Kim

Samsung Electro-Mechanics

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Dong Seong Oh

Samsung Electro-Mechanics

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Hong Sun Park

Samsung Electro-Mechanics

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Min Jin Kim

Samsung Electro-Mechanics

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Seong Wook Choi

Samsung Electro-Mechanics

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Byoung Hee Lee

Samsung Electro-Mechanics

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Dae Hoon Choi

Samsung Electro-Mechanics

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Gun Woo Moon

Samsung Electro-Mechanics

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Jung Woo Choi

Samsung Electro-Mechanics

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